CN203092993U - Automatic control device for preventing overtemperature of gun barrel of injection molding machine - Google Patents
Automatic control device for preventing overtemperature of gun barrel of injection molding machine Download PDFInfo
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- CN203092993U CN203092993U CN 201220749345 CN201220749345U CN203092993U CN 203092993 U CN203092993 U CN 203092993U CN 201220749345 CN201220749345 CN 201220749345 CN 201220749345 U CN201220749345 U CN 201220749345U CN 203092993 U CN203092993 U CN 203092993U
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- gun barrel
- infrared heater
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- heat
- overtemperature
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Abstract
The utility model discloses an automatic control device for preventing overtemperature of a gun barrel of an injection molding machine. The automatic control device comprises a far infrared heater wrapped on the excircle surface of the gun barrel, and a cooling device, wherein a gap with two enclosed ends is formed between the excircle surface of the far infrared heater and the inner wall of the gun barrel; and the cooling device is communicated with the gap between the gun barrel and the far infrared heater. According to the automatic control device, the far infrared heater substitutes for the traditional heating coil, and a heat insulation layer with a low heat conductivity coefficient is mounted on the surface of the metal outer wall of the far infrared heater, so that the external heat conduction of the heater is minimized, and the heat efficiency is high; when shear heat generated during operation of the injection molding machine results in the overtemperature of the gun barrel, the cooling device automatically controls an air pump to generate an air flow to cool the gun barrel through a temperature control module under the condition that the temperature of the gun barrel of the injection molding machine is not consistent with a set value in a controller or the heat-dissipation conditions are not consistent; rapid control is performed, so that the temperature of the gun barrel reaches the set value; and effects of temperature synchronization and accurate control are achieved.
Description
Technical field
The utility model relates to the control device of injection machine, specifically is meant a kind of automaton that prevents injection machine gun barrel overtemperature.
Background technology
Injection machine is that the macromolecule raw material are heated to the temperature that production needs through the barrel of injection machine, becomes molten state, will be heated to the polymeric fluid of molten state then, by the processing equipment of screw of injection cooling forming in the mould.The most important process conditions of injection mo(u)lding are temperature, injection moulding precision, pressure and flow-controls etc. of influence plasticizing and cooling.Wherein the control of the barrel temperature of injection machine is the pass key control technology in the injection moulding processing technology, is directly connected to the performance of injection machine and the quality of converted products.Injection machine of the prior art is to heat gun barrel by being coated on the outer heating collar heating of heating gun barrel for high molecular weight plastic material heating mode, and the gun barrel that makes heating again is with the fusion of high molecular weight plastic material.This employing heating collar mode of heating, on the one hand, though heating is concentrated, heat insulation and preservation effect is relatively poor, and more heat distributes from the heating collar metal outer wall, causes a large amount of heats to run off, and causes serious waste of resources, increases production cost; On the other hand, this device is in the plastics extrusion, screw rod reply plastics quick rotation, generation shearing force that can be extra in the reinforced process (friction by plastic pellet and screw rod produces), thus form shear heat, and the said apparatus device does not stop to carry out the heat make-up heat, very easily cause the gun barrel temperature excessive surpassed setting value, the material local temperature in the barrel excessively rises, and causes the goods part to burn, form stain, influenced the attractive in appearance of goods and some physical characteristic.Especially can't use as reworked material for transparent article, thereby cause raw-material wasting phenomenon.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of thermal efficiency high and can effectively prevent the automaton of injection machine gun barrel overtemperature.
The purpose of this utility model is achieved through the following technical solutions:
A kind of automaton that prevents injection machine gun barrel overtemperature, comprise the far-infrared heater that is wrapped in the gun barrel outer round surface, be provided with the gap of two ends sealing between far-infrared heater periphery and the gun barrel inwall, also comprise heat sink, described heat sink is communicated with the gap between gun barrel and the far-infrared heater.
Concrete, the air pump that described heat sink comprises, described air pump is communicated with described gap by an air inlet pipe, and described far-infrared heater has an opening that is in communication with the outside at least in the another side that symmetrical air inlet pipe inserts.
As a kind of improvement to such scheme, described heat sink also comprises temperature control modules, described temperature control modules comprises some temperature sensors and a controller that is installed in the gun barrel position, and described controller is connected with temperature sensor and heat sink respectively by holding wire.
Preferably, described far-infrared heater comprises the hollow tube-shape outer cover of center drilling, described outer cover comprises the cylindrical metal outer wall and is connected two end faces of metal outer wall upper and lower side, insulation framework is installed in the outer cover, be installed with far infrared heater on the insulation framework, the heat insulation layer of one deck low thermal conductivity is installed on the metal outer wall surface.
Preferably, described far infrared heater rear portion is equipped with heat-reflecting layer, is provided with thermal insulation layer between heat-reflecting layer and outer cover.
The utility model has the following advantages and beneficial effect compared to existing technology:
The utility model substitutes traditional heating collar by far-infrared heater, and the metal outer wall surface of far-infrared heater is equipped with the heat insulation layer of one deck low thermal conductivity, and it is minimum that the external heat conduction of heater has been reduced to, thermal efficiency height; When the generation shear heat causes gun barrel temperature overtemperature when injection machine moves, in injection machine gun barrel temperature and controller, set value under inconsistent or the inconsistent situation of heat radiation situation, heat sink is controlled air pump generation air-flow automatically by temperature control modules gun barrel is lowered the temperature, control apace and make the gun barrel temperature reach setting value, realize temperature synchronously with the accurate effect of control.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a far-infrared heater structural representation of the present utility model.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment
In conjunction with Fig. 1 and shown in Figure 2, this enforcement provides a kind of automaton that prevents injection machine gun barrel overtemperature, comprise the far-infrared heater 1 that is wrapped in the gun barrel outer round surface, be provided with the gap 2 of two ends sealing between far-infrared heater 1 periphery and the gun barrel inwall, also comprise heat sink, described heat sink is communicated with the gap 2 between gun barrel and the far-infrared heater.Described far-infrared heater comprises the hollow tube-shape outer cover 3 of center drilling, described outer cover 3 comprises cylindrical metal outer wall 4 and is connected two end faces 5 of metal outer wall 4 upper and lower sides, insulation framework 6 is installed in the outer cover 3, be installed with far infrared heater 7 on the insulation framework 6, far infrared heater 7 is uniformly distributed in described center drilling inner periphery, the heat insulation layer 8 of one deck low thermal conductivity is installed on metal outer wall 4 surfaces, heat insulation layer 8 is to be processed by the extremely low insulation material of thermal conductivity factor, is installed with power-line terminal 15 on metal outer wall 4.Described far infrared heater rear portion is equipped with heat-reflecting layer 13, is provided with thermal insulation layer 14 between heat-reflecting layer 13 and outer cover 3.
Described far-infrared heater 1 adopts far infrared heater 7 as heater members, produces the specific wavelength infrared ray by far infrared heater, and heat transfer efficiency is higher than traditional injection machine heating circle, can effectively promote the firing rate of electric heater; Simultaneously, at far-infrared heater thermal insulation layer, heat-reflecting layer being set also can also further heat insulation and insulation, reduces thermal losses.
The air pump 9 that described heat sink comprises, described air pump is communicated with described gap 2 by an air inlet pipe 10, and described far-infrared heater 1 has an opening that is in communication with the outside 11 at least in the another side that symmetrical air inlet pipe inserts.
Described heat sink also comprises temperature control modules, and described temperature control modules comprises some temperature sensors 12 and a controller 13 that is installed in the gun barrel position, and described controller 13 is connected with temperature sensor 12 and air pump 9 respectively by holding wire.
The utility model in use, after the energising of power-line terminal on the metal outer wall, the far infrared heater heating up, then from outer cover hollow internal delivery to the injection machine gun barrel.Because the heat insulation layer of one deck low thermal conductivity is installed on the metal outer wall surface, heat insulation layer is fixed on the metal outer wall by sheet metal plate 5, so both brought into play the supporting role of metal outer wall to heater inside, it is minimum that its external heat conduction has been reduced, and efficiency of utilization improves greatly.When the generation shear heat causes gun barrel temperature overtemperature when injection machine moves, in injection machine gun barrel temperature and controller, set value under inconsistent or the inconsistent situation of heat radiation situation, what sensor was in real time synchronous converts temperature data to signal input controller, after controller is judged according to the signal contrast of the temperature threshold values of its inner setting and input, the control air pump produces air-flow, air-flow enters gap 2 between gun barrel and the far-infrared heater through air inlet pipe, finally discharge at the opening 11 of the another side that symmetrical air inlet pipe inserts from far-infrared heater 1, because the air-flow air that other local temperature are lower that enters blows on the periphery of gun barrel, the higher here gun barrel generation heat exchange of air that temperature is lower with temperature, the heat transferred air of gun barrel, the Hot air quilt air-flow blows away, therefore play the effect of radiating and cooling, control apace and make the gun barrel temperature reach setting value, realize temperature synchronously with the accurate effect of control.
The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (5)
1. automaton that prevents injection machine gun barrel overtemperature, comprise the far-infrared heater that is wrapped in the gun barrel outer round surface, it is characterized in that: the gap that is provided with two ends sealing between far-infrared heater periphery and the gun barrel inwall, also comprise heat sink, described heat sink is communicated with the gap between gun barrel and the far-infrared heater.
2. according to the described automaton that prevents injection machine gun barrel overtemperature of claim 1, it is characterized in that: the air pump that described heat sink comprises, described air pump is communicated with described gap by an air inlet pipe, and described far-infrared heater has an opening that is in communication with the outside at least in the another side that symmetrical air inlet pipe inserts.
3. according to the described automaton that prevents injection machine gun barrel overtemperature of claim 2, it is characterized in that: described heat sink also comprises temperature control modules, described temperature control modules comprises some temperature sensors and a controller that is installed in the gun barrel position, and described controller is connected with temperature sensor and heat sink respectively by holding wire.
4. according to the described automaton that prevents injection machine gun barrel overtemperature of claim 3, it is characterized in that: described far-infrared heater comprises the hollow tube-shape outer cover of center drilling, described outer cover comprises the cylindrical metal outer wall and is connected two end faces of metal outer wall upper and lower side, insulation framework is installed in the outer cover, be installed with far infrared heater on the insulation framework, the heat insulation layer of one deck low thermal conductivity is installed on the metal outer wall surface.
5. according to the described automaton that prevents injection machine gun barrel overtemperature of claim 4, it is characterized in that: described far infrared heater rear portion is equipped with heat-reflecting layer, is provided with thermal insulation layer between heat-reflecting layer and outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749345 CN203092993U (en) | 2012-12-31 | 2012-12-31 | Automatic control device for preventing overtemperature of gun barrel of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749345 CN203092993U (en) | 2012-12-31 | 2012-12-31 | Automatic control device for preventing overtemperature of gun barrel of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203092993U true CN203092993U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220749345 Expired - Fee Related CN203092993U (en) | 2012-12-31 | 2012-12-31 | Automatic control device for preventing overtemperature of gun barrel of injection molding machine |
Country Status (1)
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| CN (1) | CN203092993U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459376A (en) * | 2015-12-31 | 2016-04-06 | 天津汇智瑞达科技有限公司 | Heating system of plastic extruding machine and plastic extruding machine |
| CN105538633A (en) * | 2014-10-27 | 2016-05-04 | 日精树脂工业株式会社 | Heating device of injection molding machine |
| CN105538632A (en) * | 2014-10-27 | 2016-05-04 | 日精树脂工业株式会社 | Temperature control device of injection molding machine |
| CN108724520A (en) * | 2018-06-19 | 2018-11-02 | 上运车物联网科技（深圳）有限公司 | High molecular polymer heats processing unit (plant) and its control method |
| CN109624251A (en) * | 2018-12-26 | 2019-04-16 | 邓权塑业科技（湖南）有限公司 | A kind of register of heating ring of injection molding machine |
| CN111836708A (en) * | 2018-03-14 | 2020-10-27 | 日精树脂工业株式会社 | Temperature control device of injection molding machine |
-
2012
- 2012-12-31 CN CN 201220749345 patent/CN203092993U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538633A (en) * | 2014-10-27 | 2016-05-04 | 日精树脂工业株式会社 | Heating device of injection molding machine |
| CN105538632A (en) * | 2014-10-27 | 2016-05-04 | 日精树脂工业株式会社 | Temperature control device of injection molding machine |
| CN105538632B (en) * | 2014-10-27 | 2018-12-07 | 日精树脂工业株式会社 | The temperature control equipment of injection (mo(u)lding) machine |
| CN105459376A (en) * | 2015-12-31 | 2016-04-06 | 天津汇智瑞达科技有限公司 | Heating system of plastic extruding machine and plastic extruding machine |
| CN111836708A (en) * | 2018-03-14 | 2020-10-27 | 日精树脂工业株式会社 | Temperature control device of injection molding machine |
| CN108724520A (en) * | 2018-06-19 | 2018-11-02 | 上运车物联网科技（深圳）有限公司 | High molecular polymer heats processing unit (plant) and its control method |
| CN109624251A (en) * | 2018-12-26 | 2019-04-16 | 邓权塑业科技（湖南）有限公司 | A kind of register of heating ring of injection molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20131231 |